v2026.5.0

What's Changed

• test: store test output files in temporary dirs by @ikrommyd in #1551
• chore: remove skyhook by @ikrommyd in #1549
• chore: add pytest-xdist to dev dependencies by @ikrommyd in #1553
• ci: bump pypa/gh-action-pypi-publish from 1.13.0 to 1.14.0 by @dependabot[bot] in #1552
• ci(pre-commit): pre-commit autoupdate by @pre-commit-ci[bot] in #1554
• ci: move dask client parametrization inside the job by @ikrommyd in #1547
• test: add rntuple executor testing by @ikrommyd in #1555
• feat: awkward validation hooks to ensure the right fields are present for vector behaviors to work by @ikrommyd in #1550
• feat: restore support for reading parquet file in executor workflows by @MoAly98 in #1548
• fix: bad siteconf hotfix by @ikrommyd in #1559
• fix: adapt to attrs fix in awkward by @ikrommyd in #1560
• chore: make the sets used in awkward validation global for performance by @ikrommyd in #1561
• fix: handle empty arrays for buffer cache by @lauridsj in #1563

Full Changelog: v2026.4.0...v2026.5.0